Where to start indeed? You sure picked one of the hardest groups to start with - peeps and other shorebirds (including immature gulls and terns) can be very difficult to identify - especially in Winter!
I am guessing you have a pair of binoculars. I would also suggest getting a field guide book. When I started birding I got into the habit of taking a notebook with me and writing down as much detail as I could see on a bird - it is very easy to forget things or find there are 10 species of birds all looking the same when you get home and look up your sightings! If you have a camera with a reasonably good lens, taking photos and uploading them to the Q&A Identification forum, you will find plenty of members more than happy to help you out with IDs.
There is plenty of advice/tips on this forum too
Advice, tips and hints for birders of all levels, from birders of all levels!
www.birdforum.net
Once you have identified your birds, you can keep your own lists and also log your sightings on ebird which helps others know what’s in your area.
Also check out the local forum for your State -
https://www.birdforum.net/forums/florida.407/
there’s several members from Florida who can advise you on what to expect and also some good spots. I had relatives in Florida many years ago so know the State a little but touching base with some more experienced birding Floridians would be an invaluable learning curve!
Happy birding!🙂